GSTR-1A Amendment Cover Letter
Record corrections to outward supply details made in GSTR-1A after filing GSTR-1 and before filing GSTR-3B for the same period.
What it is
Form GSTR-1A lets a taxpayer amend or add details of outward supplies for a tax period after filing GSTR-1 but before filing GSTR-3B for that period, so that the corrected liability flows into GSTR-3B of the same period. It was introduced from July 2024 and is optional. This cover letter records the original GSTR-1, the nature of the errors, the invoices amended and the impact on tax.
When it is used
- A missed invoice or a wrong GSTIN found after filing GSTR-1.
- Wrong tax rate or place of supply reported.
- Correcting values before filing GSTR-3B of the same month or quarter.
What the template covers
- Entity name, GSTIN and address
- Original GSTR-1 period and filing date
- Period of GSTR-1A
- Nature of the error
- Invoices amended, original and corrected values
- Impact on GSTR-3B
Details you will need
The generator asks for the following. Fields marked with an asterisk in the form are required; the rest can be left blank and filled in later in Word.
Letter
Letter Date
Entity
Entity Name; GSTIN; Address
Amendment
Original GSTR-1 Period; Date of Original GSTR-1 Filing; Period of GSTR-1A Amendment Filing
Error
Nature of Error in Original GSTR-1; Invoice Numbers being Amended; Original Values (₹); Corrected Values (₹); Impact on Tax Liability in GSTR-3B
Signatory
Authorised Signatory; Designation
Stamp duty, registration and filing
GSTR-1A can generally be filed once for a tax period and only before GSTR-3B for that period is filed. Corrections after that are made in GSTR-1 of a later period, within the time limit in Section 37. Amendments in GSTR-1A flow to the recipient's GSTR-2B. Check the current rules on gst.gov.in.
Generate the GSTR-1A Amendment Cover Letter
Fill in the form and download the draft as a Word file. It is a general template, not legal or professional advice; have it reviewed for your facts before you sign or rely on it.
Need this checked against your facts, or the registration or filing that follows (e.g. GST registration or returns)? Contact SKAG and Associates
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Frequently asked questions
Is GSTR-1A mandatory?
No. It is optional and used only when corrections are needed before GSTR-3B is filed.
Can GSTR-1A be filed after GSTR-3B?
No. After GSTR-3B is filed, corrections are made in later GSTR-1 returns.
Does GSTR-1A affect the buyer?
Yes. Corrected details flow to the buyer's GSTR-2B for ITC.
This page gives general information for reference only. Laws, stamp duty rates and filing requirements change and differ between States, so confirm the current position for your case. Related: all document templates · free tax calculators · compliance calendar and guides.